Expandable Ready Mix Joint Compound Formulation and Method of Making Same

Abstract

A joint compound system includes a drying type ready mix joint compound and a gas generation ingredient added to the ready mix joint compound just prior to use. In some aspects, the gas generation ingredient includes sodium percarbonate. In an aspect, the formulation includes a peroxide stabilizer. The peroxide stabilizer can include sodium silicate. The use of the gas generation ingredient and peroxide stabilizer create an extended period of gas generation, leading to an expansion of the mix joint compound during application, which reduces shrinkage after application, and eliminates the needs for multiple coatings.

Dependencies are inferred from the claim text.